/*========================== begin_copyright_notice ============================

Copyright (C) 2023 Intel Corporation

SPDX-License-Identifier: MIT

============================= end_copyright_notice ===========================*/

#include "common/LLVMWarningsPush.hpp"
#include "llvm/Option/ArgList.h"
#include "llvm/Support/StringSaver.h"
#include "llvm/Support/CommandLine.h"
#include "common/LLVMWarningsPop.hpp"

#include "Compiler/CISACodeGen/OpenCLOptions.hpp"
#include "common/igc_regkeys.hpp"
#include "igc/Options/Options.h"

namespace IGC {
void InternalOptions::parseOptions(const char *internalOpts) {
  using namespace options::internal;
  if (internalOpts == nullptr)
    return;

  llvm::BumpPtrAllocator alloc;
  llvm::StringSaver saver{alloc};
  llvm::SmallVector<const char *, 8> argv;
  llvm::cl::TokenizeGNUCommandLine(internalOpts, saver, argv);

  const llvm::opt::OptTable &internalOptionsTable = getInternalOptTable();
  unsigned missingArgIndex = 0;
  unsigned missingArgCount = 0;
  llvm::opt::InputArgList internalOptions =
      internalOptionsTable.ParseArgs(argv, missingArgIndex, missingArgCount, options::Flags::IGCInternalOption);

  if (internalOptions.hasArg(OPT_replace_global_offsets_by_zero_common)) {
    replaceGlobalOffsetsByZero = true;
  }

  if (internalOptions.hasArg(OPT_kernel_debug_enable_common)) {
    KernelDebugEnable = true;
  }

  if (internalOptions.hasArg(OPT_include_sip_csr_common)) {
    IncludeSIPCSR = true;
  }

  if (internalOptions.hasArg(OPT_include_sip_kernel_debug_common)) {
    IncludeSIPKernelDebug = true;
  }

  if (internalOptions.hasArg(OPT_include_sip_kernel_local_debug_common)) {
    IncludeSIPKernelDebugWithLocalMemory = true;
  }

  if (internalOptions.hasArg(OPT_use_32_bit_ptr_arith_common)) {
    Use32BitPtrArith = true;
  }

  if (internalOptions.hasArg(OPT_greater_than_4GB_buffer_required_common)) {
    IntelGreaterThan4GBBufferRequired = true;
  }

  if (internalOptions.hasArg(OPT_has_buffer_offset_arg_common)) {
    IntelHasBufferOffsetArg = true;
  }

  if (internalOptions.hasArg(OPT_buffer_offset_arg_required_common)) {
    IntelBufferOffsetArgOptional = false;
  }

  if (internalOptions.hasArg(OPT_has_positive_pointer_offset_common)) {
    IntelHasPositivePointerOffset = true;
  }

  if (internalOptions.hasArg(OPT_disable_a64wa_common)) {
    IntelDisableA64WA = true;
  }

  if (internalOptions.hasArg(OPT_force_enable_a64wa_common)) {
    IntelForceEnableA64WA = true;
  }

  if (internalOptions.hasArg(OPT_no_prera_scheduling_common)) {
    IntelEnablePreRAScheduling = false;
  }

  if (internalOptions.hasArg(OPT_force_global_mem_allocation_common)) {
    ForceGlobalMemoryAllocation = true;
  }

  if (internalOptions.hasArg(OPT_128_grf_per_thread_common)) {
    Intel128GRFPerThread = true;
  }

  if (internalOptions.hasArg(OPT_256_grf_per_thread_common)) {
    Intel256GRFPerThread = true;
  }

  if (const llvm::opt::Arg *arg = internalOptions.getLastArg(OPT_num_thread_per_eu_common)) {
    IntelNumThreadPerEU = true;
    llvm::StringRef valStr = arg->getValue();
    valStr.getAsInteger(10, numThreadsPerEU);
  }

  if (const llvm::opt::Arg *arg = internalOptions.getLastArg(OPT_exp_register_file_size_common)) {
    IntelExpGRFSize = true;
    llvm::StringRef valStr = arg->getValue();
    valStr.getAsInteger(10, expGRFSize);
  }

  if (internalOptions.hasArg(OPT_enable_auto_large_GRF_mode_common)) {
    IntelEnableAutoLargeGRF = true;
  }
  if (internalOptions.hasArg(OPT_disable_recompilation_common)) {
    IGC_SET_FLAG_VALUE(DisableRecompilation, true);
  }

  if (internalOptions.hasArg(OPT_force_emu_int32divrem_common)) {
    IntelForceInt32DivRemEmu = true;
  }

  if (internalOptions.hasArg(OPT_force_emu_sp_int32divrem_common)) {
    IntelForceInt32DivRemEmuSP = true;
  }

  if (internalOptions.hasArg(OPT_force_disable_4GB_buffer_common)) {
    IntelForceDisable4GBBuffer = true;
  }

  if (internalOptions.hasArg(OPT_use_bindless_buffers_common)) {
    PromoteStatelessToBindless = true;
  }

  if (internalOptions.hasArg(OPT_use_bindless_images_common)) {
    PreferBindlessImages = true;
  }

  if (internalOptions.hasArg(OPT_use_bindless_mode_common)) {
    // This is a new option that combines bindless generation for buffers
    // and images. Keep the old internal options to have compatibility
    // for existing tests. Those (old) options could be removed in future.
    UseBindlessMode = true;
    PreferBindlessImages = true;
    PromoteStatelessToBindless = true;
  }

  if (internalOptions.hasArg(OPT_use_bindless_printf_common)) {
    UseBindlessPrintf = true;
  }

  if (internalOptions.hasArg(OPT_use_bindless_legacy_mode_common)) {
    UseBindlessLegacyMode = true;
  }

  if (internalOptions.hasArg(OPT_use_bindless_advanced_mode_common)) {
    UseBindlessLegacyMode = false;
  }

  if (const llvm::opt::Arg *arg = internalOptions.getLastArg(OPT_vector_coalescing_common)) {
    // -cl-intel-vector-coalescing=<0-5>
    llvm::StringRef valStr = arg->getValue();
    int16_t val = 0;
    if (valStr.getAsInteger(10, val) || val < 0 || val > 5) {
      IGC_ASSERT_MESSAGE(false, "-cl-intel-vector-coalescing: invalid value, ignored!");
    } else {
      VectorCoalescingControl = val;
    }
  }

  if (internalOptions.hasArg(OPT_exclude_ir_from_zebin_common)) {
    ExcludeIRFromZEBinary = true;
  }

  if (internalOptions.hasArg(OPT_emit_zebin_visa_sections_common)) {
    EmitZeBinVISASections = true;
  }

  if (internalOptions.hasArg(OPT_no_spill_common)) {
    // This is an option to avoid spill/fill instructions in scheduler kernel.
    // OpenCL Runtime triggers scheduler kernel offline compilation while driver building,
    // since scratch space is not supported in this specific case, we cannot end up with
    // spilling kernel. If this option is set, then IGC will recompile the kernel with
    // some some optimizations disabled to avoid spill/fill instructions.
    NoSpill = true;
  }

  if (internalOptions.hasArg(OPT_disable_noMaskWA_common)) {
    DisableNoMaskWA = true;
  }

  if (internalOptions.hasArg(OPT_ignoreBFRounding_common)) {
    IgnoreBFRounding = true;
  }

  if (internalOptions.hasArg(OPT_compile_one_at_time_common)) {
    CompileOneKernelAtTime = true;
  }

  if (internalOptions.hasArg(OPT_skip_reloc_add_common)) {
    AllowRelocAdd = false;
  }

  if (internalOptions.hasArg(OPT_disableEUFusion_common)) {
    DisableEUFusion = true;
  }

  if (const llvm::opt::Arg *arg = internalOptions.getLastArg(OPT_functonControl_common)) {
    llvm::StringRef valStr = arg->getValue();
    int val = 0;
    if (valStr.getAsInteger(10, val) || val < 0) {
      IGC_ASSERT_MESSAGE(false, "-cl-intel-functonControl: invalid value, ignored!");
    } else {
      FunctionControl = val;
    }
  }

  if (internalOptions.hasArg(OPT_fail_on_spill_common)) {
    FailOnSpill = true;
  }

  if (const llvm::opt::Arg *arg = internalOptions.getLastArg(OPT_load_cache_default_common)) {
    llvm::StringRef valStr = arg->getValue();
    int val = 0;
    if (valStr.getAsInteger(10, val) || val < 0) {
      IGC_ASSERT_MESSAGE(false, "-cl-load-cache-default: invalid value, ignored!");
    } else {
      LoadCacheDefault = val;
    }
  }

  if (const llvm::opt::Arg *arg = internalOptions.getLastArg(OPT_store_cache_default_common)) {
    llvm::StringRef valStr = arg->getValue();
    int val = 0;
    if (valStr.getAsInteger(10, val) || val < 0) {
      IGC_ASSERT_MESSAGE(false, "-cl-store-cache-default: invalid value, ignored!");
    } else {
      StoreCacheDefault = val;
    }
  }

  if (const llvm::opt::Arg *arg = internalOptions.getLastArg(OPT_ldstcombine_common)) {
    // Valid value: 0|1|2
    llvm::StringRef valStr = arg->getValue();
    int val = 0;
    if (valStr.getAsInteger(10, val) || (val != 0 && val != 1 && val != 2)) {
      IGC_ASSERT_MESSAGE(false, "-ldstcombine: invalid and ignored!");
    } else {
      LdStCombine = val;
    }
  }

  if (const llvm::opt::Arg *arg = internalOptions.getLastArg(OPT_ldstcombine_max_storebytes_common)) {
    // Valid value: 4|8|16|32
    llvm::StringRef valStr = arg->getValue();
    int val = 0;
    if (valStr.getAsInteger(10, val) || !(llvm::isPowerOf2_32(val) && val >= 4 && val <= 32)) {
      IGC_ASSERT_MESSAGE(false, "-ldstcombine_max_storebytes: invalid and ignored!");
    } else {
      MaxStoreBytes = val;
    }
  }

  if (const llvm::opt::Arg *arg = internalOptions.getLastArg(OPT_ldstcombine_max_loadbytes_common)) {
    // Valid value: 4|8|16|32
    llvm::StringRef valStr = arg->getValue();
    int val = 0;
    if (valStr.getAsInteger(10, val) || !(llvm::isPowerOf2_32(val) && val >= 4 && val <= 32)) {
      IGC_ASSERT_MESSAGE(false, "-ldstcombine_max_loadbytes: invalid and ignored!");
    } else {
      MaxLoadBytes = val;
    }
  }

  if (internalOptions.hasArg(OPT_fp64_gen_emu_common)) {
    // This option enables FP64 emulation for platforms that
    // cannot HW support for double operations
    EnableFP64GenEmu = true;
  }

  // *-private-memory-minimal-size-per-thread <SIZE>
  // SIZE >= 0
  if (const llvm::opt::Arg *arg = internalOptions.getLastArg(OPT_private_memory_minimal_size_per_thread_common)) {
    llvm::StringRef valStr = arg->getValue();
    int val = 0;
    if (valStr.getAsInteger(10, val) || val < 0) {
      IGC_ASSERT_MESSAGE(false, "-cl-private-memory-minimal-size-per-thread: invalid value, ignored!");
    } else {
      IntelPrivateMemoryMinimalSizePerThread = val;
    }
  }

  // *-scratch-space-private-memory-minimal-size-per-thread <SIZE>
  // SIZE >= 0
  if (const llvm::opt::Arg *arg =
          internalOptions.getLastArg(OPT_scratch_space_private_memory_minimal_size_per_thread_common)) {
    llvm::StringRef valStr = arg->getValue();
    int val = 0;
    if (valStr.getAsInteger(10, val) || val < 0) {
      IGC_ASSERT_MESSAGE(false, "-cl-scratch-space-private-memory-minimal-size-per-thread: invalid value, ignored!");
    } else {
      IntelScratchSpacePrivateMemoryMinimalSizePerThread = val;
    }
  }

  if (internalOptions.hasArg(OPT_enable_divergent_barrier_handling_common)) {
    EnableDivergentBarrierHandling = true;
  }

  if (internalOptions.hasArg(OPT_high_accuracy_nolut_math_common)) {
    UseHighAccuracyMathFuncs = true;
  }

  if (internalOptions.hasArg(OPT_emit_visa_only)) {
    EmitVisaOnly = true;
  }

  if (IntelForceDisable4GBBuffer) {
    IntelGreaterThan4GBBufferRequired = false;
  }

  if (internalOptions.hasArg(OPT_buffer_bounds_checking_common)) {
    EnableBufferBoundsChecking = true;
  }

  if (const llvm::opt::Arg *arg = internalOptions.getLastArg(OPT_minimum_valid_address_checking_common)) {
    llvm::StringRef valStr = arg->getValue();
    int val = 0;
    if (valStr.getAsInteger(16, val) || val < 0) {
      IGC_ASSERT_MESSAGE(false, "-cl-minimum-valid-address-checking: invalid value, ignored!");
    } else {
      MinimumValidAddress = val;
    }
  }

  if (internalOptions.hasArg(OPT_disable_sendwarwa_common)) {
    // This option disables SendWAR WA
    // This applies to PVC platform only
    DisableSendWARWA = true;
  }
}

void Options::parseOptions(const char *opts) {
  using namespace options::api;
  if (opts == nullptr)
    return;

  llvm::BumpPtrAllocator alloc;
  llvm::StringSaver saver{alloc};
  llvm::SmallVector<const char *, 8> argv;
  llvm::cl::TokenizeGNUCommandLine(opts, saver, argv);

  const llvm::opt::OptTable &apiOptionsTable = getApiOptTable();
  unsigned missingArgIndex = 0;
  unsigned missingArgCount = 0;
  llvm::opt::InputArgList apiOptions =
      apiOptionsTable.ParseArgs(argv, missingArgIndex, missingArgCount, options::Flags::IGCApiOption);

  if (apiOptions.hasArg(OPT_fp32_correctly_rounded_divide_sqrt_common)) {
    CorrectlyRoundedSqrt = true;
  }

  if (apiOptions.hasArg(OPT_no_subgroup_ifp_common)) {
    NoSubgroupIFP = true;
  }

  if (apiOptions.hasArg(OPT_uniform_work_group_size_common)) {
    // Note that this is only available for -cl-std >= 2.0.
    // This will be checked before we place this into the
    // the module metadata.
    UniformWGS = true;
  }

  if (apiOptions.hasArg(OPT_take_global_address_common)) {
    EnableTakeGlobalAddress = true;
  }

  if (apiOptions.hasArg(OPT_library_compilation_common)) {
    IsLibraryCompilation = true;
  }

  if (const llvm::opt::Arg *arg = apiOptions.getLastArg(OPT_library_compile_simd_common)) {
    llvm::StringRef valStr = arg->getValue();
    unsigned simdsz = 0;
    if (!valStr.getAsInteger(10, simdsz) && (simdsz == 8 || simdsz == 16 || simdsz == 32))
      LibraryCompileSIMDSize = simdsz;
    else
      IGC_ASSERT_MESSAGE(false, "Library selected with invalid SIMD size");
  }

  if (apiOptions.hasArg(OPT_emit_lib_compile_errors_common)) {
    EmitErrorsForLibCompilation = true;
  }

  if (apiOptions.hasArg(OPT_gtpin_rera_common)) {
    GTPinReRA = true;
  }

  if (apiOptions.hasArg(OPT_gtpin_grf_info_common)) {
    GTPinGRFInfo = true;
  }

  if (const llvm::opt::Arg *arg = apiOptions.getLastArg(OPT_gtpin_scratch_area_size_common)) {
    if (arg->getNumValues() > 0) {
      GTPinScratchAreaSize = true;
      llvm::StringRef valStr = arg->getValue();
      valStr.getAsInteger(10, GTPinScratchAreaSizeValue);
    }
  }

  if (apiOptions.hasArg(OPT_gtpin_indir_ref_common)) {
    GTPinIndirRef = true;
  }

  if (apiOptions.hasArg(OPT_skip_fde_common)) {
    SkipFDE = true;
  }

  if (apiOptions.hasArg(OPT_no_fusedCallWA_common)) {
    NoFusedCallWA = true;
  }

  if (apiOptions.hasArg(OPT_disable_compaction_common)) {
    DisableCompaction = true;
  }

  if (const llvm::opt::Arg *arg = apiOptions.getLastArg(OPT_required_thread_count_common)) {
    if (arg->getNumValues() > 0) {
      IntelRequiredEUThreadCount = true;
      llvm::StringRef valStr = arg->getValue();
      valStr.getAsInteger(10, requiredEUThreadCount);
    }
  }

  for (const auto &arg : apiOptions.getAllArgValues(OPT_large_grf_kernel_common)) {
    LargeGRFKernels.push_back(arg);
  }

  for (const auto &arg : apiOptions.getAllArgValues(OPT_regular_grf_kernel_common)) {
    RegularGRFKernels.push_back(arg);
  }

  if (apiOptions.hasArg(OPT_enable_auto_large_GRF_mode_common)) {
    IntelEnableAutoLargeGRF = true;
  }

  if (const llvm::opt::Arg *arg = apiOptions.getLastArg(OPT_exp_register_file_size_common)) {
    IntelExpGRFSize = true;
    llvm::StringRef valStr = arg->getValue();
    valStr.getAsInteger(10, expGRFSize);

    IntelLargeRegisterFile = expGRFSize == 256;
  }

  if (apiOptions.hasArg(OPT_no_local_to_generic_common)) {
    NoLocalToGeneric = true;
  }

  if (apiOptions.hasArg(OPT_greater_than_4GB_buffer_required_common)) {
    IntelGreaterThan4GBBufferRequired = true;
  }

  if (apiOptions.hasArg(OPT_128_grf_per_thread_common)) {
    Intel128GRFPerThread = true;
  }

  if (apiOptions.hasArg(OPT_256_grf_per_thread_common)) {
    Intel256GRFPerThread = true;
  }

  if (apiOptions.hasArg(OPT_poison_unsupported_fp64_kernels_common)) {
    // This option forces IGC to poison kernels using fp64
    // operations on platforms without HW support for fp64.
    EnableUnsupportedFP64Poisoning = true;
  }

  if (apiOptions.hasArg(OPT_fp64_gen_emu_common)) {
    // This option enables FP64 emulation for platforms that
    // cannot HW support for double operations
    EnableFP64GenEmu = true;
  }

  if (apiOptions.hasArg(OPT_fp64_gen_conv_emu_common)) {
    // This option enables FP64 emulation for conversions
    // This applies to platforms that cannot HW support for double operations
    EnableFP64GenConvEmu = true;
  }

  if (const llvm::opt::Arg *arg = apiOptions.getLastArg(OPT_Xfinalizer)) {
    Xfinalizer = true;
    XfinalizerOption = arg->getValue();
  }

  if (apiOptions.hasArg(OPT_static_profile_guided_trimming_common)) {
    StaticProfileGuidedTrimming = true;
  }

  if (apiOptions.hasArg(OPT_enable_ieee_float_exception_trap_common)) {
    EnableIEEEFloatExceptionTrap = true;
  }
}
} // namespace IGC
